Quality is everything! US Walker (WORK) imported electric diaphragm valve by electric actuators and valve diaphragm composed to 220V Ac power for the power to accept a standard signal 0 ~ 10mADC or 4 ~ 20mADC signal to realize the process pipe acid, alkali, etc. Flow corrosive medium and high viscosity, harmful media regulation and control. Used in petroleum, chemical, metallurgical and other corrosion systems. Features: valve flow resistance is small, the flow resistance, flow capacity, no stuffing, no external leakage, with corrosion-resistant, fire prevention, anti-virus, safe and reliable, according to different lining and diaphragm, get a good corrosion . Electric actuators for electronic integration institutions, there are servo amplifier, the input control signal (4-20mADC or 1-5VDC) and the power to control the valve opening. Reached on the pressure and flow, level, temperature and other working parameters adjustment. A sensitive, simple connection, flow, small size, high precision adjustment. Diaphragm body smooth flow throttling element is an elastic diaphragm valves, valve cover no stuffing. Thus valve regulating valve flow capacity than the average large and no leakage within the allowable pressure range to do with the shut-off valve. The valves are suitable for high viscosity fluid regulating occasions, suspended like particles, fiber media and toxic media, corrosive media. When ordering, please provide the following information:? A nominal diameter (mm), nominal pressure (MPa), operating temperature range of two straight and before the pressure regulating valve, the valve pressure of 3 media name and status at 4 single seat??? valve supply voltage (220V or 380V, default 220V) 5 Input signal:??? 4-20mA, or 1-5V (default 4-20mA) 6 single-seat control valve body, the trim material requirements seven other special requirements (eg corrosion requirements, proof grade requirements, leakage class limits, etc.) USA Walker (WORK) Valves Chinese agents welcome your inquire and order!